Planetary hours
in Dortmund.
The day, from sunrise to sunset, is cut into twelve equal hours; so is the night, from sunset to the next sunrise. Each hour carries a planet, in the Chaldean order. A planetary hour therefore lasts 60 minutes only at the equinoxes: it all depends on the date and the city. Here are the exact hours for your city; what you do with them is up to you.
Planetary day of Sunday, 16 August 2026: day of the Sun
- Sunrise
- 06:17
- Sunset
- 20:50
- Next sunrise
- 06:18
A day hour lasts 1h 13m; a night hour, 47 min. Local time (Europe/Berlin).
Day
- 1☉︎ Sun06:17 – 07:29
- 2♀︎ Venus07:29 – 08:42
- 3☿︎ Mercury08:42 – 09:55
- 4☽︎ Moon09:55 – 11:08
- 5♄︎ Saturn11:08 – 12:21
- 6♃︎ Jupiter12:21 – 13:33
- 7♂︎ Mars13:33 – 14:46
- 8☉︎ Sun14:46 – 15:59
- 9♀︎ Venus15:59 – 17:12
- 10☿︎ Mercury17:12 – 18:25
- 11☽︎ Moon18:25 – 19:37
- 12♄︎ Saturn19:37 – 20:50
Night
- 1♃︎ Jupiter20:50 – 21:38
- 2♂︎ Mars21:38 – 22:25
- 3☉︎ Sun22:25 – 23:12
- 4♀︎ Venus23:12 – 00:00
- 5☿︎ Mercury00:00 – 00:47
- 6☽︎ Moon00:47 – 01:34
- 7♄︎ Saturn01:34 – 02:21
- 8♃︎ Jupiter02:21 – 03:09
- 9♂︎ Mars03:09 – 03:56
- 10☉︎ Sun03:56 – 04:43
- 11♀︎ Venus04:43 – 05:31
- 12☿︎ Mercury05:31 – 06:18
Other cities · Germany
Questions
How are the planetary hours calculated in Dortmund?
On Sunday, 16 August 2026, the Sun rises at 06:17 and sets at 20:50: the day lasts 14h 34m, that is twelve day hours of 1h 13m. The night, until the next sunrise at 06:18, lasts 9h 28m: twelve night hours of 47 min.
Which planet rules the first hour that day?
The Sun, from 06:17 to 07:29: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun again.
Today’s sky, on YOUR chart
Planetary hours are the same for everyone in a city. Your chart is yours alone: every morning AstroXP crosses the real sky with your birth, to the minute, and tells you what time it plays out for you.
On a computer? Scan this code with your phone.
Calendars
Sunrise and sunset calculated for the city (the Sun’s centre 0°50′ below the horizon: refraction and semi-diameter), local time of the city’s time zone. Checked against astronomy-engine, the app’s engine.